Well I guess the topic title covers it pretty well. I personally think it would be awesome for 40K fans to play as a space marine in a world that they would fit into nicely. A basic reskin of the body and maybe adding and/or replacing some of the voice audio files for colt with those from the space marine game. And as far as I know there isn't a first person game out there that lets you play as a space marine (with the exception of certain Skyrim mods which doesn't really count). So I guess I am just putting the Idea for what I personally think would be a pretty badass mod out there.